/in/foo.c: In function 'main':
/in/foo.c:6:12: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
    6 |    scanf("%d", m);
      |           ~^   ~
      |            |   |
      |            |   int
      |            int *
/in/foo.c:6:4: warning: 'm' is used uninitialized [-Wuninitialized]
    6 |    scanf("%d", m);
      |    ^~~~~~~~~~~~~~
/in/foo.c:5:8: note: 'm' was declared here
    5 |    int m, a ,b ,c;
      |        ^
/in/foo.c:7:10: warning: 'a' is used uninitialized [-Wuninitialized]
    7 |    m = a * 100 + b * 10 + c;
      |        ~~^~~~~
/in/foo.c:5:11: note: 'a' was declared here
    5 |    int m, a ,b ,c;
      |           ^
/in/foo.c:7:20: warning: 'b' is used uninitialized [-Wuninitialized]
    7 |    m = a * 100 + b * 10 + c;
      |                  ~~^~~~
/in/foo.c:5:14: note: 'b' was declared here
    5 |    int m, a ,b ,c;
      |              ^
/in/foo.c:7:6: warning: 'c' is used uninitialized [-Wuninitialized]
    7 |    m = a * 100 + b * 10 + c;
      |    ~~^~~~~~~~~~~~~~~~~~~~~~
/in/foo.c:5:17: note: 'c' was declared here
    5 |    int m, a ,b ,c;
      |                 ^